<template>
    <div>
       计算属性与watch
    </div>
</template>

<script  setup>
    /*  export default {
          name: "Tets"
      }*/
    import {ref,reactive} from 'vue'
    const x = reactive({a:'a'})
    const x2 = ref(20)
</script>

<style scoped>

</style>